The initials FUE stand for Follicular Unit Extraction and this refers to the most advanced technique used at the moment for hair transplants.
The principal feature of this technique is that the follicular units are extracted one by one from the back of the head, which is usually where the most hair remains. Hair by hair, one at a time, each with its root. The removal is carried out with a wooden needle. It is a technique which requires great precision and it takes a long time. The great advantage is that it leaves no scars, unlike the traditional hair transplant method.
There is also another technique, known as FUT (Follicular Unit Transplantation), which involves removing a strip of scalp in the form of an ellipsis. This is a way to obtain follicules which act as donor hair. This is where the surgeon's skill is extremely important. He or she has to know how to remove the hair strip and cleanly transplant it to the part which is balding, and their skill in doing so determines whether or not a scar is left. This is a more invasive technique, which needs to be carried out under local anaesthetic.
Due to this, and because it is more effective, the hair-by-hair transplant technique is becoming more common. Although it is more expensive, there is another major advantage. The hairs removed from the back of the head do not contain testosterone receivers, so they are immune to hair loss triggers.